XC6121F650MR-G

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PMICs - Supervisors are power management ICs (PMICs) used for system safety and protection utilizing resets, power-on reset generators, voltage supervisor circuits, clock supervisors, supply sequencing, and watchdog counters. They help designers add a level of system protection that can save time and reduce costs associated with resolving system issues.

XC6121F650MR-G is a robust, cost-effective supervisor circuit suitable for a variety of consumer, industrial, and communication applications. This circuit provides near-instantaneously signal pattern detection and a wide range of watchdog reset time configurations. It contains an oscillator, low dropout voltage regulator, comparators, and RC circuit blocks that operates as a power-on reset generator.

Application fields of XC6121F650MR-G include consumer electronics, personal computers, industrial equipment, channel servers, network servers, data storage systems, and other system board or application board designs.

Unique features of XC6121F650MR-G include low power consumption (5µA), low dropout voltage, ultra-low EMI (Electro Magnetic Interference), immobility in EOS/ESD, and CapDebounce capacitor natural in circuit. The cumpulsory reset also allows system board designs to use single chip ChipOn-board modules, eliminating the need for additional external reset devices.

Working principle of XC6121F650RC-G is based on two output voltages. The first voltage is supplied from the internal oscillator circuit and connected to the GND pin by the capacitor for power contiguity, the user can set the output interval. The second voltage defaults to VDD, in which case it is monitored by the voltage comparator. When the second voltage falls and differs from the first one by a higher level of the threshold voltage, then a reset will occur.

Alarm and reset time can be preset using external resistor and capacitor. This allows XC6121F650MR-G to detect power supply abnormality and reduce or eliminate the use of external reset coils or circuitry.

The reset signals (RESET and RESETb outputs) can at user’s request be generated to the right voltage levels and the right current drive for the microprocessor on the system board. This is offered for both active high and active low systems. Predefined voltage thresholds also allow detection at a lower voltage than the power supply, safe power switch-off, and less system noise.

The XC6121F650MR-G also supports watchdog timer output for more safety power on. The watchdog timer circuit can be reset automatically, avoiding the need to reset it explicitly.

The high-reliability structure of XC6121F650MR-G allows it to be used in variety of high-end applications and applications with harsh environments.

Inconclusion, XC6121F650MR-G can be referred to as a high-end PMIC - Supervisors with a wide range of applications and reliable safety performance. With its low power consumption, high reliability, and numerous reset functions, it simplifies the design of electronic systems.

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